The ever versatile Kazuki Kitamura stars as masterless samurai Kyutaro Madarame, a feared swordsman who has fallen on hard times in old Edo. Caught between two warring gangs in an epic battle of cat lovers and dog lovers, he begrudgingly accepts the canine faction's offer to assassinate the opposite leader's beloved pet: an adorable white cat. Yet upon raising his lethal sword, he cannot bring himself to go through with the act, and the cat melts his ronin heart. But before finding peace as a newly minted cat person, the still fearsome Madarame will have to take on both gangs in a classic samurai street brawl.
Nagisa is transgender. She grew up in Hiroshima as a man, but now lives in Shinjuku, Tokyo as a woman. Due to an incident, she begins to live with middle school student Ichika, who is a distant relative. Ichika has been neglected by her mother Saori. From living in solitude by herself, to now living with Ichika, Nagisa develops maternal instincts for the first time.
Mei lives in an orphanage, but she is adopted by the wealthy and kind Uda family. The family already has an adopted daughter Rana. While Rana seems weird, Mei and Rana find that they have a lot in common and become like real sisters. The girls then learn that the Uda family's business has collapsed and they can only keep one of the daughters. One of the girls will be returned to the orphanage in a week. Revenge is soon planned.
